FullStack Developer at Knowmax · Gurugram · 4 - 6 years · ₹18L - ₹20L / yr · Bootstrapped · Posted 5 Dec 2025

Knowmax is a global B2B SaaS platform built to elevate customer experience through intelligent knowledge management. We enable customer-facing teams to access the right answers instantly—across contact centers, digital channels, and field support—driving consistency, efficiency, and satisfaction at scale.
Preferred Profile: Candidates with prior experience working on product development in a startup environment.
Core Backend Skills
- Node.js Mastery
- Deep understanding of event loop, async patterns (Promises, async/await).
- Experience with frameworks like Express, NestJS, Fastify.
- Writing scalable APIs (REST), middleware, and modular code.
- Database Expertise
- SQL/Postgres – schema design, complex joins, indexing, query optimization.
- Knowledge of transactions, isolation levels, and migrations.
- Basic familiarity with ORMs (Sequelize/TypeORM/Prisma) and raw queries.
- Architecture & Design
- Ability to design backend systems
- Good understanding of API versioning, caching strategies (Redis).
Frontend (Average Skill Expected)
- Comfortable with React (or Nuxt/Vue) for building and maintaining UIs.
- Basic understanding of state management (Redux, Vuex, Pinia).
- Familiarity with component-based architecture and UI libraries (Material UI, Tailwind).
- Can debug UI issues but not expected to be a design/UX expert.
Other Expectations
- Code Quality – Writing unit tests (Jest/Mocha), code reviews, and maintaining clean architecture.
- Problem-Solving – Strong data structures and algorithmic skills (not as intense as SD3/Architect).
- Collaboration – Able to mentor juniors, break down tasks, and work closely with product and QA.
- Performance & Security – Understands security best practices (OWASP) and performance profiling.

About Knowmax
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About VerbaFlo.ai
VerbaFlo.ai is a fast-growing AI SaaS startup revolutionizing how businesses leverage AI-powered solutions. As a part of our dynamic team, you’ll work alongside industry leaders and visionaries to drive innovation and execution across multiple functions.
Role Overview
We are looking for a Senior Backend Engineer to design and develop user-friendly, scalable, and high-performance web applications. This role requires deep expertise in backend technologies, attention to detail, and the ability to collaborate with cross-functional teams.
Responsibilities
- Design, develop, and maintain scalable backend systems, APIs, and data pipelines.
- Collaborate closely with frontend engineers, product managers, and AI teams to deliver cohesive features and seamless user experiences.
- Ensure the reliability, security, and performance of backend systems.
- Write clean, maintainable, and efficient code using modern backend practices.
- Implement automated testing, CI/CD workflows, and infrastructure as code (where applicable).
- Own the end-to-end lifecycle of backend features, from architecture to deployment.
- Monitor production systems and resolve performance and scalability issues.
- Contribute to architectural decisions and help evolve our engineering best practices.
Requirements
- 4–6 years of experience in backend development in startups, preferably in SaaS or AI-driven products.
- Proficiency in Node.js, Python, or Go
- Deep understanding of RESTful API design.
- Strong experience with databases: PostgreSQL, MongoDB, ElasticSearch.
- Exposure to message queues, job schedulers, or event-driven architectures (e.g., SQS, Celery, etc).
- Familiarity with cloud platforms like AWS, GCP, or Azure and containerization tools (Docker, Kubernetes).
- Experience with Git, CI/CD tools, and writing unit/integration tests.
- Strong problem-solving skills and a mindset geared toward performance and security.
- Excellent communication and collaboration abilities.
Why Join Us?
- Work directly with top leadership in a high-impact role.
- Be part of an innovative and fast-growing AI startup.
- Opportunity to take ownership of key projects and drive efficiency.
- A collaborative, ambitious, and fast-paced work environment.
- Perks & Benefits: gym membership benefit, workation policy, and company-sponsored lunch.
If you’re looking for an exciting role that combines strategy, execution, and leadership exposure, we’d love to hear from you!
Why This Role Matters
Our backend is what keeps checkout, RTO, and payments fast and reliable at ~$2B GMV across 15,000+ merchants. As an SDE 2 you own services end to end, make the architecture calls that keep them performant, and set the technical bar for the engineers around you. The trade-offs you pick show up directly in merchant conversions and platform reliability - this is a builder's seat with real ownership.
What You'll Own
- Design and build backend services primarily in Node.js/NestJS, with Go for select services, backed by Postgres, Mongo, and Redis.
- Own event-driven flows on Kafka - throughput, ordering, and failure handling.
- Make and document the architecture and trade-off decisions for systems you lead.
- Ship features end to end, dropping into the frontend (React/Svelte) when it's the fastest path.
- Strengthen CI/CD, observability, and deployments on AWS.
- Review code, mentor SDE 1s and AEs, and raise the quality bar on the team.
- Take ambiguous problems and drive them to delivery with minimal hand-holding.
Who You Are
- Strong backend engineer in JavaScript/TypeScript on Node.js/NestJS (our primary stack); working knowledge of Go, or ready to pick it up.
- Solid at data modelling across Postgres and Mongo, and knows when Redis earns its place.
- Has built and scaled event-driven systems (Kafka or equivalent).
- At home on the backend but happy to work across the stack in React/Svelte.
- Thinks in systems - scalability, reliability, maintainability - not just features.
- Has mentored engineers and owns code quality and delivery, not just their own tickets.
- Communicates clearly and does well with ambiguity in a fast-moving team.
Senior Software Engineer I (Backend, Enterprise SaaS - AP) Role summary
•Senior individual contributor owning backend services for a large-scale enterprise SaaS platform (Kanban-style work management and flow).
•Designs and ships features end-to-end, collaborating closely with frontend, product, and QA.
What you’ll do
•Design, implement, and maintain Node.js (TypeScript/JavaScript) backend services and APIs.
•Model and evolve core domain entities (boards, lanes, work items, WIP rules, permissions, cross-team connections).
•Build secure, multi-tenant REST/JSON APIs consumed by web frontends and other internal services.
•Implement business logic for work-flow, metrics, and cross-team visibility.
•Improve performance, reliability, and observability of existing services.
•Integrate backend services with data storage and analytics layers via well-designed interfaces.
•Write and maintain automated tests (unit, integration, contract) and participate in code reviews.
•Partner with product to refine requirements and break work into incremental, shippable slices.
Tech stack
•Node.js, TypeScript/JavaScript
•REST/JSON APIs (GraphQL familiarity a plus)
•Relational/NoSQL data stores
•CI/CD, logging, metrics, and alerting tools
Experience & qualifications
•~6–9 years of backend engineering experience building web or SaaS products.
•Strong Node.js skills and experience designing clean API boundaries.
•Solid understanding of data structures, algorithms, and distributed system basics.
•Experience in agile teams; comfortable collaborating across time zones.
Nice to have
•Experience with Kanban/Agile tools or other developer/productivity SaaS products.
•Experience using AI-assisted coding tools (e.g., GitHub Copilot, Claude Code) in day-to-day development.
•Hands-on experience with React or close collaboration with React frontend teams.
About AbleCredit:
AbleCredit is on a mission to solve the Credit Gap of emerging economies. In India alone, the Credit Gap is over USD 5T (Trillion!). This is the single largest contributor to poverty, poor genie index and lack of opportunities.
Ablecredit is a rare startup because we are probably the only revenue generating GenAI startup in India.
Key Responsibilities:
● Solving highly complex technical challenges and driving large-scale projects; developing robust and scalable web applications using Node.js, MongoDB
● Participate in system design, architecture, and help build scalable, high-performance systems
● Mentor junior engineers (SDEs and SDE-2s), driving technical decisions, and leading entire projects or initiatives
● Conduct code reviews and provide constructive feedback to team members.
● Architect efficient and reusable back-end systems and optimize applications for maximum speed and scalability.
● Implement security and data protection measures.
● Stay updated on emerging technologies and best practices in web development.
Qualifications:
● Bachelor' s degree in Computer Science, Engineering, or a related field.
● Minimum of 5 years of experience in backend web development.
● Proficiency in Node.js and typescript along with their core principles.
● Experience with server-side frameworks such as Express.js.
● Familiarity with database systems such as MongoDB, or PostgreSQL.
● Knowledge of RESTful APIs and asynchronous request handling.
● Excellent problem-solving and troubleshooting skills.
● Ability to work independently and as part of a team in a fast-paced environment.
● Effective communication skills and the ability to collaborate with stakeholders.
● Bonus: can whip up a front end or UI with AI agents or all by yourself.
Role Description
Software Engineer is a full-time role based in Hyderabad with Onsite work arrangement. This role involves designing, developing, and maintaining back-end services and APIs, ensuring high performance, scalability, and security across platforms. The engineer will participate in architecture discussions, code reviews, and technical decision-making, collaborating closely with product owners, QA, and cross-functional teams. Daily responsibilities include writing clean, maintainable code, troubleshooting complex issues, improving system performance, and contributing to best practices, documentation, and engineering standards. The role also includes mentoring less experienced engineers and supporting continuous improvement in development processes and tooling.
Key Requirements/Skills
4-7 years of overall experience in software development with strong expertise in building scalable web & mobile applications.
- Strong technical decision-making ability, including architecture design, technology selection and implementation of best practices.
- Front-end expertise: Strong experience in React, JavaScript, TypeScript, NextJS and building responsive and user-friendly UI/UX.
- Back-end development: Hands-on experience with Node.js, Express JS, Nest JS, RESTful APIs, API design, and server-side architecture.
- Databases : Good Hands on Exprience in both SQL(PostgreSQL Preferred) & No SQL Databases
- Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models and integrating AI-based solutions to solve business problems. Expereince with Langchain, langgraph and Vector DBs, Voice AI(STT, TTS) Models and experience in using Open AI Tools (Calude, Cursor, etc.)
- Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
- Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
- Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
- Strong communication skills to effectively interact with technical and non-technical stakeholders.
- Experience working in high-compliance environments such as healthcare systems is a plus.
- Certifications in AWS & Other skills and technologies will be an added advantage.
Educational Qualification
- B.Tech / M.Tech in CSE/IT/AI&ML only from a recognized university/college.

About the client
The client is building a suite of SaaS products for websites—products with clear product-market fit, strong customer pull, and the potential to become $100M+ businesses.
As they grow, they need engineers who go beyond feature delivery. They are looking for backend developers who want to build enduring systems, make practical decisions, and help us ship great products with high velocity.
What You’ll Do
- Work with product, design, and support teams to turn real customer problems into thoughtful, scalable solutions.
- Design and build robust backend systems, services, and APIs that prioritize long-term maintainability and performance.
- Use AI-assisted tooling (where appropriate) to explore solution trees, accelerate development, and reduce toil.
- Improve velocity across the team by building reusable tools, abstractions, and internal workflows—not just shipping isolated features.
- Dig into problems deeply—whether it's debugging a performance issue, streamlining a process, or questioning a product assumption.
- Document your decisions clearly and communicate trade-offs with both technical and non-technical stakeholders.
What Makes You a Strong Fit
- You’ve built and maintained real-world software systems, ideally at meaningful scale or complexity.
- You think in systems and second-order effects—not just in ticket-by-ticket outputs.
- You prefer well-reasoned defaults over overengineering.
- You take ownership—not just of code, but of the outcomes it enables.
- You work cleanly, write clear code, and make life easier for those who come after you.
- You’re curious about the why, not just the what—and you’re comfortable contributing to product discussions
Bonus if You Have Experience With
- Building tools or workflows that accelerate other developers.
- Working with AI coding tools and integrating them meaningfully into your workflow.
- Building for SaaS products, especially those with large user bases or self-serve motions.
- Working in small, fast-moving product teams with a high bar for ownership.
How’s the team?
- Open and flat hierarchy
- High-agency work with a get-stuff-done attitude
- Teams that focus on creating wins - for the org, the team and yourself - all fuelled by mentorship and empowerment
Our Culture
Some values we’ve lived by over these last 14 years:
We think like inventors.
>Invent the answer you wish existed. If it already exists, ask how it could exist better.<
We build for the love of it. And we build the best.
We don’t just copy and paste. We start from first principles—frame the problem, question the default, ship, improve, repeat—until it’s world-class.
Every version and experiment is a chance to push past our comfort zone and hone our craft. It isn’t easy—it takes patience and persistence—but it ends in work we’re proud of.
Ownership builds a rocket ship.
>It’s not the hours you put in your work that count; it’s the work you put in the hours.<
We’re here to build the business. When we see a problem, we own it end‑to‑end. We pull in the right people, ask for help early, track just enough to finish, and close the loop. We focus on what moves the needle, cut low‑impact work, and push hard when it counts—then recover.
That focus builds subject mastery. It helps get in the flow. It fuels passion and can spark healthy friction—and that’s all part of the game. We make a fuss when it matters, and once a call is made, we commit to it fully—whether we all agree or disagree.
Step up to stand tall.
>Greatness is a moving target.<
Chase excellence in your craft and take on bigger problems. Grow into a full-stack problem-solver and leader—whatever your domain. Improve with intent, work with people who push you, and never get too comfortable. That’s how we level up.
Benefits
- Relocation benefits - we’ll book your domestic travel if you are not in Bangalore and help you with 2 weeks of accommodation
- Homemade lunch at the office and a pantry with snacks, fresh coffee & tea
- All the IT essentials and tools you’ll need to be successful in your role, everyone at the office gets an external monitor, ergonomic seating and a mechanical keyboard
- Frequent outings, company-sponsored outdoor events, celebrations for milestones, trips for the entire team and sponsorships to participate at international company events at exotic destinations
- Profit-sharing bonuses based on company growth, tenure and performance
- Paid time off - maternity, paternity, and marriage leave
- Insurance for the whole family
Role : Node Developer
Experience: 1 to 5 Years
Location: Chennai - Taramani
Type: Contract
Duration : 6+ Months
CTC- 2-3.5 LPA
Immediate joiners only
Skills: Node + SQL
Job Summary
We Are Looking For A Talented Node.Js Developer With At Least 2 Years Of Hands-On Experience In Designing And Developing Scalable Backend Applications. The Ideal Candidate Should Have Experience Building Restful Apis, Working With Databases, Integrating Third-Party Services, And Collaborating With Frontend Developers To Deliver High-Quality Applications.
Key Responsibilities
Design, Develop, Test, And Maintain Server-Side Applications Using Node.Js.
Develop Restful Apis And Microservices.
Integrate Third-Party Apis And External Services.
Write Clean, Reusable, And Maintainable Code.
Optimize Applications For Performance And Scalability.
Collaborate With Frontend Developers, Qa Engineers, And Business Stakeholders.
Troubleshoot, Debug, And Resolve Production Issues.
Participate In Code Reviews And Follow Coding Standards.
Work In Agile&;Scrum Development Environments.
Prepare Technical Documentation Where Required.
Required Skills
Strong Knowledge Of Javascript (Es6+) And Asynchronous Programming.
Hands-On Experience With Node.Js.
Experience With Express.Js Or Nestjs.
Good Understanding Of Rest Apis.
Experience With Authentication Mechanisms Such As Jwt And Oauth.
Knowledge Of Mongodb, Postgresql, Or Mysql.
Experience With Git And Version Control.
Understanding Of Api Security And Best Practices.
Familiarity With Docker Is An Added Advantage.
Preferred Skills (Optional)
Experience With Aws, Azure, Or Google Cloud.
Knowledge Of Redis Or Caching Mechanisms.
Exposure To Ci Cd Pipelines.
Understanding Of Microservices Architecture.
Basic Knowledge Of Frontend Technologies Like Angular Or React.
About NonStop io Technologies:
NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment. We're seeking an experienced Backend Software Engineer to join our team. As a backend engineer, you will be responsible for designing, developing, and deploying scalable backends for the products we build at NonStop. This includes APIs, databases, and server-side logic.
Responsibilities:
● Design, develop, and deploy backend systems, including APIs, databases, and server-side logic
● Write clean, efficient, and well-documented code that adheres to industry standards and best practices
● Participate in code reviews and contribute to the improvement of the codebase
● Debug and resolve issues in the existing codebase
● Develop and execute unit tests to ensure high code quality
● Work with DevOps engineers to ensure seamless deployment of software changes
● Monitor application performance, identify bottlenecks, and optimize systems for better scalability and efficiency
● Stay up-to-date with industry trends and emerging technologies; advocate for best practices and new ideas within the team
● Collaborate with cross-functional teams to identify and prioritize project requirements
Requirements:
● At least 3+ years of experience building scalable and reliable backend systems
● Strong expertise in NodeJS/NestJS, Express, PostgreSQL
● Experience with microservices architecture and distributed systems
● Proficiency in database design (SQL and NoSQL)
● Knowledge of cloud platforms (AWS, Azure, or GCP) and CI/CD pipelines
● Deep understanding of design patterns, data structures, and algorithms
● Hands-on experience with containerization technologies like Docker and orchestration tools like Kubernetes
● Exceptional communication and leadership skills
● Strong understanding of object-oriented programming principles and design patterns
● Familiarity with automated testing frameworks and methodologies
● Excellent problem-solving skills and attention to detail
● Strong communication skills and ability to effectively lead and maintain a collaborative team environmen
● Ready to be a tech-agnostic engineer and comfortable to shift on any tech stack (Java, Node, Python etc)
● Comfortable working with AI (Claude code, Cursor etc)
We are seeking a skilled React & Node.js Developer to join our development team. The ideal candidate will be responsible for building scalable web applications using modern frontend and backend technologies. You will work closely with cross-functional teams to design, develop, and maintain high-performance applications.
Key Responsibilities
- Develop responsive and user-friendly web applications using React.js
- Build scalable backend services and APIs using Node.js and Express.js
- Design and manage RESTful APIs
- Integrate frontend and backend systems
- Work with databases such as MongoDB / MySQL / PostgreSQL
- Write clean, maintainable, and efficient code
- Perform code reviews and participate in agile ceremonies
- Troubleshoot and debug applications
- Optimize applications for performance and scalability
Required Skills
- Strong experience in React.js (Hooks, Redux/Context API)
- Solid experience with Node.js and Express.js
- Good understanding of JavaScript (ES6+)
- Experience with REST APIs
- Knowledge of database systems (MongoDB, MySQL, or PostgreSQL)
- Familiarity with Git version control
- Understanding of authentication & authorization (JWT, OAuth)
- Basic knowledge of cloud platforms (AWS/Azure/GCP) is a plus

Apply and complete the screening questions on Just Interview:
https://app.justinterview.ai/apply/10004915?src=cutshort
Company: Lucid Growth Media
Website: https://lucidgrowthmedia.com/
Department: Engineering
Employment type: Full-time
Work mode: On-site
Job location: Shyamnagar, Jaipur, Rajasthan
Minimum experience: 4 years of professional experience
Maximum experience: 6 years of professional experience
Prior on-site development-team experience: At least 2 years
Monthly take-home salary: ₹60,000–₹80,000 — up to ₹80,000, based on demonstrated capability and relevant experience. The offer will include a salary breakdown.
Working schedule: Monday to Saturday; second and fourth Saturdays off. Sundays off.
Shift timing: 9:00 AM–6:00 PM (9-hour shift)
Application deadline: 30 September 2026
Skills: Node.js, TypeScript, Rust, asynchronous processing, REST APIs, database design, performance debugging, Git review and application security.
Job description
Join a small engineering team improving existing software and building new capabilities. You will own backend reliability, data correctness and asynchronous processing, and guide technical decisions across application and automation engineers.
This is a hands-on position involving production debugging, measured performance improvements, safe changes to existing code and release ownership. Company-provided AI coding tools support the work; you remain responsible for understanding and verifying what ships.
Responsibilities
- Develop and improve TypeScript/Node.js APIs and Rust services, including concurrency, failure handling and durable processing.
- Diagnose slow queries and API paths; improve schemas, indexes, caching and background jobs based on evidence.
- Define reliable service contracts, event identities, retries and reconciliation across connected components.
- Protect data access, credentials and permissions; plan migrations, staged releases and recovery.
- Review changes, document decisions and help engineers resolve technical blockers.
- Break work into tracked tasks with acceptance criteria, obtain the required approval and provide test/release evidence at completion.
Required skills and experience
- Substantial production Node.js/TypeScript experience and Rust experience you can explain through systems you personally changed or operated.
- Practical asynchronous Rust, ownership/error handling, network integration, persistence and debugging skills.
- Strong database fundamentals, including query analysis, transactions or consistency trade-offs, and safe migration practices.
- Experience with API authentication, automated tests, Git review, logging and controlled deployment.
- Clear written English for task plans, technical decisions, incident notes and constructive review discussions.
- Evidence of taking responsibility for a problem, responding to feedback and verifying the corrected result.
Experience with MCP/tool integrations, containerised services or performance profiling is useful. Depth in the core responsibilities matters more than a long list of frameworks.
How we work and hire
Work follows documented tasks, approval, implementation, review and verification. We value early escalation of blockers and honest reporting of results.
Selection includes a short AI-assisted initial interview, an approximately 60–90-minute practical using synthetic material, and an on-site technical discussion. Final hiring decisions include human review.













